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Question: A mass attached to a spring undergoes simple harmonic motion with an amplitude of 4.0 cm. When the mass is 2.0 cm from the equilibrium position, what fraction of its total energy is potential energy?
1) one quarter
2) one third
3) one half
4) three quarter
A loop of diameter d = 12 cm, carrying a current I = 0.4 A is placed inside a magnetic field B = (0.2 T) i^+ (0.4 T) j^. What is the potential energy of the loop
question1two gerbils run in place with a linear speed of 0.60 on an exercise wheel that is twisted like a hoop. find
A horizontal segment of a pipe carrying water tapers from a cross sectional area of 50 cm^2 to .500 cm^2. What is the pressure at the narrow end of the segment
A block of mass 2.0kg rests on top of another block of mass 5.0kg. What is the maximum amplitude of oscillations possible such that the block stay together
An unstrained horizontal spring has a length of 0.31 m and a spring constant of 190 N/m. Two small charged objects are attached to this spring, one at each end. Determine the possible algebraic signs
Hydraulic engineers often use, as a unit of volume of water, the "acre-foot", defined as volume of water that will cover 1 acre of land to a depth of 1 ft. A severe thunderstorm dumps 2.0 in. of rain in 30 min on a town of area 35 km2. What volume..
A plank 2.00 cm thick and 12.9 cm wide is firmly attached to the railing of a ship by clamps so that the rest of the board extends 2.00 m horizontally over the sea below. find the shear modulus of the wood
a hockey player wants to pass the puck to his team mate. the puck needs to go a distance of 30 meters before coming to a rest. what initial velocity should be given to the puck
A thin rod with length L has a linear density that varies as D = dm/dx = Ax, Calculate the moment of inertia of the rod for an axis at the left end, perpendicular to the rod. Compare your result to that of a uniform rod
THe index of refraction of gold is n= .31 + i2.88 at 560nm, and n=12.2 + i54.7 at 9.92um. Find the normal incidence absorptivity and reflectivity at both wavelengths. Please show each step by step.
A tiny ball of mass 0.425 g is suspended by a thread of negligible mass in a horizontal electric field of 400 N/C. what will be the deflection angle of the string
3.00×104 of 300 C steam at a pressure of 20.0 is cooled until it condenses. What is the volume of the liquid water
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